Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual 2007 tem um 2003 de 1r?
 ###Tabelas: CREATE TABLE grand_slam_tournament_performance_timeline (grand_slam_tournament_performance_timeline_id AUTO_INCREMENT PRIMARY KEY, Tournament VARCHAR, 2002 VARCHAR, 2003 VARCHAR, 2004 VARCHAR, 2005 VARCHAR, 2006 VARCHAR, 2007 VARCHAR, 2008 VARCHAR, 2009 VARCHAR, 2010 VARCHAR, 2011 VARCHAR, 2012 VARCHAR, Win % VARCHAR) CREATE TABLE all-time_medal_count (all-time_medal_count_id AUTO_INCREMENT PRIMARY KEY, Country VARCHAR, Gold INT, Silver INT, Bronze INT, Total INT) CREATE TABLE official_sports (official_sports_id AUTO_INCREMENT PRIMARY KEY, Rank VARCHAR, Nation VARCHAR, Gold INT, Silver INT, Bronze INT, Total INT) CREATE TABLE bi-_tl-_and_hg-based_high-__c__superconductors (bi-_tl-_and_hg-based_high-__c__superconductors_id AUTO_INCREMENT PRIMARY KEY, Formula VARCHAR, Notation VARCHAR, T c (K) INT, No. of Cu-O planes in unit cell INT, Crystal structure VARCHAR) CREATE TABLE series_1_2009 (series_1_2009_id AUTO_INCREMENT PRIMARY KEY, No. INT, # INT, Episode VARCHAR, Writer VARCHAR, Director VARCHAR, Original air date VARCHAR, Viewing figure INT)  
SELECT 2007 FROM grand_slam_tournament_performance_timeline WHERE 2003 = 1r